EP0973170A3 - Apparatus and method for controlling electric power supply in nonvolatile memory rewriting operation - Google Patents

Apparatus and method for controlling electric power supply in nonvolatile memory rewriting operation Download PDF

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Publication number
EP0973170A3
EP0973170A3 EP99110642A EP99110642A EP0973170A3 EP 0973170 A3 EP0973170 A3 EP 0973170A3 EP 99110642 A EP99110642 A EP 99110642A EP 99110642 A EP99110642 A EP 99110642A EP 0973170 A3 EP0973170 A3 EP 0973170A3
Authority
EP
European Patent Office
Prior art keywords
power supply
electric power
rewriting
flash rom
nonvolatile memory
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP99110642A
Other languages
German (de)
French (fr)
Other versions
EP0973170B1 (en
EP0973170A2 (en
Inventor
Hirokazu Komori
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Original Assignee
Denso Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Denso Corp filed Critical Denso Corp
Publication of EP0973170A2 publication Critical patent/EP0973170A2/en
Publication of EP0973170A3 publication Critical patent/EP0973170A3/en
Application granted granted Critical
Publication of EP0973170B1 publication Critical patent/EP0973170B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C16/00—Erasable programmable read-only memories
    • G11C16/02—Erasable programmable read-only memories electrically programmable
    • G11C16/06—Auxiliary circuits, e.g. for writing into memory
    • G11C16/10—Programming or data input circuits
    • G11C16/102—External programming circuits, e.g. EPROM programmers; In-circuit programming or reprogramming; EPROM emulators

Abstract

A boot program or an internal combustion engine control program and data stored in a flash ROM (13) are rewritten in a flash ROM rewriting processing by a microcomputer (11) of an ECU (10). In this instance, a main relay control circuit (19) is controlled to hold an electric power supply from a main relay (22), as the rewriting is disabled to be made repeatedly once the electric power supply is interrupted in the midst of the boot program. An entire electric power supply is interrupted by an ignition switch (21) to enable the interruption in the midst of rewriting with respect to other programs. Thus, the electric power supply at the time of the program rewriting can be set to hold/stop in correspondence with the importance of the programs stored in the flash ROM (13).
EP99110642A 1998-07-03 1999-06-02 Apparatus and method for controlling electric power supply in nonvolatile memory rewriting operation Expired - Lifetime EP0973170B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP18921598A JP4248624B2 (en) 1998-07-03 1998-07-03 Electronic control device for internal combustion engine.
JP18921598 1998-07-03

Publications (3)

Publication Number Publication Date
EP0973170A2 EP0973170A2 (en) 2000-01-19
EP0973170A3 true EP0973170A3 (en) 2000-06-21
EP0973170B1 EP0973170B1 (en) 2005-09-07

Family

ID=16237493

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99110642A Expired - Lifetime EP0973170B1 (en) 1998-07-03 1999-06-02 Apparatus and method for controlling electric power supply in nonvolatile memory rewriting operation

Country Status (4)

Country Link
US (1) US6182004B1 (en)
EP (1) EP0973170B1 (en)
JP (1) JP4248624B2 (en)
DE (1) DE69927094T2 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000010666A (en) * 1998-06-19 2000-01-14 Toshiba Corp Computer system and flash rom rewriting method
US6277124B1 (en) * 1999-10-27 2001-08-21 Synthes (Usa) Method and apparatus for ratcheting adjustment of bone segments
JP2001306316A (en) * 2000-04-21 2001-11-02 Sharp Corp Control circuit and semiconductor device using the same
JP4543535B2 (en) * 2000-10-26 2010-09-15 株式会社ニコン Wireless communication unit and camera system
US7234052B2 (en) * 2002-03-08 2007-06-19 Samsung Electronics Co., Ltd System boot using NAND flash memory and method thereof
JP2004051056A (en) * 2002-07-24 2004-02-19 Mitsubishi Electric Corp Electronic controller for automobile
JP4606693B2 (en) * 2002-11-22 2011-01-05 ソニー株式会社 Optical disc, recording device, playback device, recording method, playback method
JP4130679B2 (en) * 2003-05-20 2008-08-06 ボッシュ株式会社 Return control method for vehicle control system
JP4179945B2 (en) * 2003-08-08 2008-11-12 サンデン株式会社 Vending machine terminal control device
JP4692231B2 (en) * 2005-11-04 2011-06-01 株式会社デンソー Electronic control device for vehicle
US7934050B2 (en) * 2006-12-07 2011-04-26 Denso Corporation Microcomputer for flash memory rewriting
JP5081076B2 (en) * 2008-06-23 2012-11-21 株式会社リコー Memory management apparatus, image forming apparatus, and memory management method
TWI437395B (en) * 2010-10-22 2014-05-11 Chan Li Machinery Co Ltd Optimized PID Control Method for Process Equipment System
JP2020027640A (en) 2018-08-10 2020-02-20 株式会社デンソー Electronic control device, method for controlling execution of rewriting, and program for controlling execution of rewriting
WO2020032122A1 (en) * 2018-08-10 2020-02-13 株式会社デンソー Electronic control device, vehicular electronic control system, rewriting execution control method, rewriting execution control program, and data structure of specification data
CN112739780B (en) 2018-09-28 2023-09-19 日本瑞翁株式会社 Resin composition and molded article thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997048100A1 (en) * 1996-06-07 1997-12-18 Inside Technologies Electrically erasable and programmable non-volatile memory protected against power failure
US5712969A (en) * 1993-09-24 1998-01-27 Robert Bosch Gmbh Method for completely reprogramming an erasable, non-volatile memory
WO1998008161A1 (en) * 1996-08-22 1998-02-26 Schneider Automation Method for loading an operating system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US925724A (en) 1907-10-01 1909-06-22 Broedr Refsums Stoeberi & Mek Vaerksted Art of molding hollow articles in sand by means of divided patterns.
US5745864A (en) * 1994-10-04 1998-04-28 Nippondenso Co., Ltd. Vehicular information storage device and power outage-resistant storage system and method for the same
JP3292864B2 (en) * 1995-02-07 2002-06-17 株式会社日立製作所 Data processing device
JP3870563B2 (en) * 1998-07-22 2007-01-17 株式会社デンソー Electronic control device and non-volatile memory rewrite count method
JP2000045858A (en) * 1998-07-28 2000-02-15 Denso Corp Rewriting number storing method for electronic control unit and non-volatile memory

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5712969A (en) * 1993-09-24 1998-01-27 Robert Bosch Gmbh Method for completely reprogramming an erasable, non-volatile memory
WO1997048100A1 (en) * 1996-06-07 1997-12-18 Inside Technologies Electrically erasable and programmable non-volatile memory protected against power failure
WO1998008161A1 (en) * 1996-08-22 1998-02-26 Schneider Automation Method for loading an operating system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"DATA INTEGRITY OF EEPROM DATA DURING POWER UP/DOWN CYCLES", IBM TECHNICAL DISCLOSURE BULLETIN,US,IBM CORP. NEW YORK, vol. 32, no. 9B, 1 February 1990 (1990-02-01), pages 277 - 278, XP000082345, ISSN: 0018-8689 *

Also Published As

Publication number Publication date
EP0973170B1 (en) 2005-09-07
US6182004B1 (en) 2001-01-30
JP4248624B2 (en) 2009-04-02
DE69927094T2 (en) 2006-05-18
DE69927094D1 (en) 2005-10-13
JP2000020178A (en) 2000-01-21
EP0973170A2 (en) 2000-01-19

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